illegitimate
il.le.git.i.mate \-'jit-*-m*t\ aj 1: not recognized as lawful offspring; specif : born of parents no t married to each other 2: not rightly deduced or inferred : ILLOGICAL 3: departing from the regular : ERRATIC 4a: ILLEGAL 4b: not authorized by good usage of a taxon 4c: published either validly or invalidly but not according with the rules of the relevant international code - il.le.git.i.mate.ly av